Running around 300 servers in small environments (meaning: only one 2003 server as domain controller and file/print/exchange) lead me to the following tweaks:
@echo off echo "This server has 1 GB or more of physical memory" reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager" /v HeapDeCommitFreeBlockThreshold /t REG_DWORD /d 262144 /f echo "This server is running Windows 2003" reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v SystemPages /t REG_DWORD /d 0 /f echo "This server is a domain controller - faster shutdown" reg add "HKLM\SYSTEM\CurrentControlSet\Control" /v WaitToKillServiceTimeout /t REG_SZ /d 20000 /f